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23900961 = 371138141
BaseRepresentation
bin101101100101…
…1001100100001
31122222021221210
41123023030201
522104312321
62212140333
7410104050
oct133131441
948867853
1023900961
1112545167
1280076a9
134c4aba6
143262397
152171b76
hex16cb321

23900961 has 8 divisors (see below), whose sum is σ = 36420544. Its totient is φ = 13657680.

The previous prime is 23900951. The next prime is 23900971. The reversal of 23900961 is 16900932.

It is an interprime number because it is at equal distance from previous prime (23900951) and next prime (23900971).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23900961 - 210 = 23899937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23900951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569050 + ... + 569091.

It is an arithmetic number, because the mean of its divisors is an integer number (4552568).

Almost surely, 223900961 is an apocalyptic number.

23900961 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23900961 is a deficient number, since it is larger than the sum of its proper divisors (12519583).

23900961 is a wasteful number, since it uses less digits than its factorization.

23900961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138151.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 23900961 is about 4888.8609102735. The cubic root of 23900961 is about 288.0525921509.

The spelling of 23900961 in words is "twenty-three million, nine hundred thousand, nine hundred sixty-one".

Divisors: 1 3 7 21 1138141 3414423 7966987 23900961